System Settings - Daikin Altherma EHVH04S18CB3V Installer's Reference Manual

Low temperature split
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8 Configuration
T
Calculated temperature
calc
a
Closed
b
Open
#
Code
N/A
[C-03]
Range: –25°C~25°C (default: 0°C) (step:
1°C)
N/A
[C-04]
Range: 2°C~10°C (default: 3°C) (step:
1°C)
It is recommended to choose [C‑04] bigger than the default value to
have an optimal operation when choosing possibility 2. Depending
on the used boiler, the boiler efficiency should be chosen as follows:
#
Code
[A.6.A]
[7‑05]
▪ 0: Very high
▪ 1: High
▪ 2: Medium
▪ 3: Low
▪ 4: Very low
INFORMATION
Electricity price can only be set when bivalent is ON
([A.2.2.6.1] or [C-02]). These values can only be set in
menu structure [7.4.5.1], [7.4.5.2] and [7.4.5.3]. Do NOT
use overview settings.
INFORMATION
Boiler efficiency [A.6.A] or [7‑05] becomes visible when
bivalent is ON ([A.2.2.6.1] or [C‑02]).
CAUTION
Make sure to observe all rules mentioned in application
guideline 5 when bivalent operation function is enabled.
Daikin shall NOT be held liable for any damage resulting
from failure to observe this rule.
INFORMATION
▪ The combination of setting [4‑03]=0/2 with bivalent
operation at low outdoor temperature can result in
domestic hot water shortage.
▪ The bivalent operation function has no impact on the
domestic water heating mode. The domestic hot water
is still and only heated by the indoor unit.
▪ The permission signal for the auxiliary boiler is located
on the EKRP1HB (digital I/O PCB). When it is
activated, the contact X1, X2 is closed and open when
it is deactivated. See illustration below for the
schematic location of this contact.
X2M
X1M
YC Y1 Y2 Y3 Y4
Bottom plate heater
Applies only to installation with an outdoor unit ERHQ and the option
bottom plate heater kit is installed.
Installer reference guide
66
Description
Description
OFF ON
SS1
▪ [F-02] Bottom plate heater ON temperature: defines the outdoor
temperature below which the bottom plate heater will be activated
by indoor unit in order to prevent ice build-up in the bottom plate of
the outdoor unit at lower outdoor temperatures.
▪ [F-03] Bottom plate heater hysteresis: defines the temperature
difference between bottom plate heater ON temperature and the
bottom plate heater OFF temperature.
Bottom plate heater
a
[F-03]
b
T
A
[F-02]
T
Outdoor temperature
A
a
On
b
OFF
CAUTION
The bottom plate heater is controlled via EKRP1HB.
#
Code
N/A
[F-02]
Bottom plate heater ON temperature:
3°C~10°C (default: 3°C)
N/A
[F-03]
Hysteresis: 2°C~5°C (default: 5°C)
INFORMATION
Dependent from setting [F-04] contact Y2 located on digital
I/O PCB (EKRP1HB) controls the option bottom plate
heater. See illustration below for the schematic location of
this contact. For complete upwiring, see
diagram" on
page 92.
X2M
X1M
YC Y1
Y2
Y3 Y4
8.3.4

System settings

Priorities
For systems with separate domestic hot water tank (only for
EHBH/X)
ERLQ004~008CA + EHVH/X04+08S18+26CB
Description
"14.6  Wiring
OFF ON
SS1
Daikin Altherma – Low temperature split
4P384973-1A – 2016.02

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